<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			#aoo{
				border: 1px solid;
				width: 250px;
				height: 250px;
				background-image: url(image/bai.png);
				border-radius: 250px;
			}
		</style>
	</head>
	<body>
		<div id="aoo"></div>
	</body>
</html>
